Trig Problem

[greatwhiteshark]

I was asked to find the fastest time for a helicopter flying at 200 MPH from the nearest station to a ship. I found the nearest station to be 135.66 miles from the ship.

This is what I did:

time = 135.56 miles/200 mph

t = 0.68, which is approximately 41 minutes according to the math book.

How do I convert 0.68 to 41 minutes?

 

[tkhunny]

It helps to define and track your units.

't' is in hours. Multiply by '60 min/hr' to get minutes.

 

[greatwhiteshark]

okay

So I can do this:

60 minutes x 0.68 = 40.8.

Then round off to the nearest unit or ones place to get 41 minutes.
Great stuff here!

 

[Gene]

Think of the units as a fraction. 60 minutes/1 hour times hours. The hours cancel and you are left with minutes. If you wanted seconde you multiply by 60 seconds/1 minute. Days? 1 day/24 hours. You can go from anything to anything that way. You are multplying by one each time.
-------------------
Gene

 

[greatwhiteshark]

Okay

Great Gene.